EP0188329A3 - Am signal transmitter - Google Patents

Am signal transmitter Download PDF

Info

Publication number
EP0188329A3
EP0188329A3 EP86300099A EP86300099A EP0188329A3 EP 0188329 A3 EP0188329 A3 EP 0188329A3 EP 86300099 A EP86300099 A EP 86300099A EP 86300099 A EP86300099 A EP 86300099A EP 0188329 A3 EP0188329 A3 EP 0188329A3
Authority
EP
European Patent Office
Prior art keywords
signal transmitter
transmitter
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86300099A
Other versions
EP0188329B1 (en
EP0188329A2 (en
Inventor
Naoki C/O Nec Corporation Kobayashi
Takashi C/O Nec Corporation Asakura
Hideo C/O Nec Corporation Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of EP0188329A2 publication Critical patent/EP0188329A2/en
Publication of EP0188329A3 publication Critical patent/EP0188329A3/en
Application granted granted Critical
Publication of EP0188329B1 publication Critical patent/EP0188329B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
EP86300099A 1985-01-09 1986-01-08 Am signal transmitter Expired EP0188329B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1956/85 1985-01-09
JP60001956A JPS61161005A (en) 1985-01-09 1985-01-09 Amplitude modulator transmitter

Publications (3)

Publication Number Publication Date
EP0188329A2 EP0188329A2 (en) 1986-07-23
EP0188329A3 true EP0188329A3 (en) 1988-01-27
EP0188329B1 EP0188329B1 (en) 1990-09-05

Family

ID=11516046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86300099A Expired EP0188329B1 (en) 1985-01-09 1986-01-08 Am signal transmitter

Country Status (4)

Country Link
US (1) US4723308A (en)
EP (1) EP0188329B1 (en)
JP (1) JPS61161005A (en)
DE (1) DE3673830D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866737A (en) * 1987-07-21 1989-09-12 Bruce Seifried High speed voiceband data transmission and reception
US5175877A (en) * 1990-03-15 1992-12-29 Magnavox Electronic Systems Company Apparatus and method for generating an amplitude modulated rf signal
DE4210069A1 (en) * 1992-03-27 1993-09-30 Asea Brown Boveri Amplitude-modulated radio transmitter for various types of modulation, especially DSB, SSB and ISB

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235549A (en) * 1939-12-15 1941-03-18 Gen Electric Modulator
US3435378A (en) * 1966-03-25 1969-03-25 Communications Patents Ltd Apparatus for generating modulated waves from pulse-type modulating signal
EP0054981A1 (en) * 1980-12-12 1982-06-30 BBC Brown Boveri AG Amplifier circuit for low-frequency modulation signals of a radio transmitter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413570A (en) * 1966-02-23 1968-11-26 Collins Radio Co High efficiency rf power amplification with modulation signal controlled "on"-"off" switch varied amplifier dc potentials
US4063199A (en) * 1977-02-10 1977-12-13 Rca Corporation Radio frequency pulse width amplitude modulation system
US4122415A (en) * 1977-03-21 1978-10-24 Rca Corporation AM transmitter with an offset voltage to the RF stage to compensate for switching time of the modulators
DE2720930C3 (en) * 1977-05-10 1980-12-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Amplitude-modulated transmitter
GB1551711A (en) * 1978-03-02 1979-08-30 Marconi Ltd Modulation circuits
US4272737A (en) * 1979-05-25 1981-06-09 The Marconi Company Limited Pulse width modulator for amplitude modulation circuit
GB2079105B (en) * 1981-02-27 1984-07-11 Marconi Co Ltd A pulse width modulation system
US4336615A (en) * 1980-10-02 1982-06-22 Rca Corporation Linear loading for PWM filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235549A (en) * 1939-12-15 1941-03-18 Gen Electric Modulator
US3435378A (en) * 1966-03-25 1969-03-25 Communications Patents Ltd Apparatus for generating modulated waves from pulse-type modulating signal
EP0054981A1 (en) * 1980-12-12 1982-06-30 BBC Brown Boveri AG Amplifier circuit for low-frequency modulation signals of a radio transmitter

Also Published As

Publication number Publication date
EP0188329B1 (en) 1990-09-05
US4723308A (en) 1988-02-02
DE3673830D1 (en) 1990-10-11
JPS61161005A (en) 1986-07-21
EP0188329A2 (en) 1986-07-23

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